In this tutorial, we will discuss C program triangle alphabet pattern using while loop
In this post, we will learn how to displayed Floyd’s triangle alphabet pattern using while loop or nested while loop in C programming language
here, we displayed some alphabet pyramid triangle program with coding using nested while loop and also we get input from user using scanf() function in C language
the user can provide numbers as they wish and get the alphabet pattern according to their input
Program 1
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=1;
while(j<=i){
printf("%c",'A'-1+i);
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A BB CCC DDDD EEEEE FFFFFF
Program 2
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=1;
while(j<=i){
printf("%c",'A'-1+j);
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A AB ABC ABCD ABCDE ABCDEF
Program 3
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=rows;
while(j>=i)
{
printf("%C",'A'-1+i);
j--;
}
i++;
printf("\n");
}
getch();
return 0;
} When the above code executed, it produces the following results
Enter the number of rows 6 AAAAAA BBBBB CCCC DDD EE F
Program 4
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=rows;
while(i>=1){
j=i;
while(j<=rows)
{
printf("%c",'A'+j-1);
j++;
}
i--;
printf("\n");
}
getch();
return 0;
} When the above code executed, it produces the following results
Enter the number of rows: 6 F EF DEF CDEF BCDEF ABCDEF
Program 5
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=i;
while(j>=1)
{
printf("%c",'A'+j-1);
j--;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A BA CBA DCBA EDCBA FEDCBA
Program 6
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
i=rows;
printf("\n");
while(i>=1){
j=rows;
while(j>=i)
{
printf("%c",'A'+j-1);
j--;
}
i--;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter te number of rows: 6 F FE FED FEDC FEDCB FEDCBA
Program 7
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
i=rows;
printf("\n");
while(i>=1){
j=rows;
while(j>=i)
{
printf("%c",'A'-1+i);
j--;
}
i--;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 F EE DDD CCCC BBBBB AAAAAA
Program 8
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
i=rows;
printf("\n");
while(i>=1){
j=1;
while(j<=i)
{
printf("%c",'A'-1+i);
j++;
}
i--;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 FFFFFF EEEEE DDDD CCC BB A
Program 9
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
printf("\n");
i=1;
while(i<=rows){
j=rows;
while(j>=i)
{
printf("%c",'A'-1+j);
j--;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 FEDCBA FEDCB FEDC FED FE F
Program 10
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: ");
scanf("%d",&rows);
printf("\n");
i=rows;
while(i>=1){
j=i;
while(j>=1)
{
printf("%c",'A'-1+j);
j--;
}
i--;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 FEDCBA EDCBA DCBA CBA BA A
Program 11
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
char ch='A';
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=1;
while(j<=i){
printf("%c ",ch++);
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A B C D E F G H I J K L M N O P Q R S T U
Program 12
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows,num,count;
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=1;
while(i<=rows){
num=rows-1;
count=i;
j=1;
while( j<=i){
printf("%2c",(char)(count+64));
count=count+num;
num--;
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A B G C H L D I M P E J N Q S F K O R T U
Program 13
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows: \n");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=1;
while(j<=(i*2-1)){
printf("%c",(char)(j+64));
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A ABC ABCDE ABCDEFG ABCDEFGHI ABCDEFGHIJK
Program 14
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,rows;
printf("Enter the number of rows\n");
scanf("%d",&rows);
i=1;
while(i<=rows){
j=i;
while(j<=rows){
printf("%c",(char)(j+64));
j++;
}
i++;
printf("\n");
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 ABCDEF BCDEF CDEF DEF EF F
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